1 Explain that a population pyramid shows the age and sex structure of a population. 2  Point to the horizontal bars, which show the percentage (or the absolute number) of males and females in each age group. 3  Have students interpret the chart.
1 Although they range from $150-$400 or more, a large capacity (25-70 pints) dehumidifier for a basement (the dampest portion of most homes) or other large area averages $200-$300.
Comfort Aire dehumidifiers help protect your home's walls and foundations from moisture damage as well as preserve the life your carpets and furnishings by creating proper humidity levels. Unit models range from 30- to 95-pint capacities and have convenient design elements that make operation and maintenance simple and intuitive.